Perpendicular magnetization of L10-ordered FePt films in the thinnest limit

S. Imada, A. Yamasaki, S. Suga, T. Shima, K. Takanashi

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31 Citations (Scopus)

Abstract

Ll0-ordered FePt ultrathin films with thickness down to subnanometer range were fabricated by alternate monatomic layer (ML) deposition of Fe and Pt on Pt (001) substrate and were capped by Pt. Perpendicular Fe magnetic moment under magnetic field, together with that under remanence, was detected by soft x-ray magnetic circular dichroism. Pt/(Fe 1 ML/Pt 1 ML) 3/Pt (001), whose FePt layer is ~ 1 nm thick, showed perpendicular remanent magnetization at room temperature. At low temperatures, perpendicular remanent magnetization was found even at the thinnest end, i.e., 1 ML Fe sandwiched by Pt (001).

Original languageEnglish
Article number132507
JournalApplied Physics Letters
Volume90
Issue number13
DOIs
Publication statusPublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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